SOURCE: headlight adjustment
AIMING
The head lamps should be aimed using a special alignment tool, however this procedure may be used for temporary adjustment. Local regulations may vary regarding head lamp aiming, consult with your local authorities.
SOURCE: Jeep Headlights not working. High beam works
had the same problem on my 92....check under the hood on the drivers side,towards the front,there is a "junction box" with all of the lighting wires connecting from the switches to the lights.My wires were all corroded inside,so I cleaned the ends and bought a new box from the local electronic supply store.The problem has not come back.
Cheers
SOURCE: how to adjust headlights
If you open your hood and look at the flat surface right on top of the headlights ther should be some holes with adjustment screws in them point headlights at a wall on level surface and adjust to comfort. you will need a screwdriver or torq bit (star shaped screwdriver)
SOURCE: Headlights, regular and high beam, are not
The adjustment screws/nuts should be located either on the top of the headlamp assembly,
behind the headlamp assembly, or near the frame rail by the radiator
support.
You will have vertical adjustment screws for each independent beam
(separate highs and separate lows, but will be same screw if highs and
lows are the same bulb). You may also have additional horizontal
adjustment screws as well
Park
your car on a level ground 30 feet from a wall and measure the height
from the ground to the bulb and mark on a wall (do this for highs beams
and low beams if the bulbs are separate, if highs and lows are the same
bulb, only do it for the lows)
For Low Beams: If the headlights read VOR, then
aim the brightest part or cutoff part just below the mark on the wall.
If it says VOL or nothing, aim them 2 inches below the mark on the wall.
For High Beams (if separate from low beams): Aim the headlight directly at the line you marked on the wall.
SOURCE: 2008 gmc sierra headlight adjustment for up and
did you use the numbers on headlamp lens for the headlight aimer
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